2005 Chevrolet Optra Black Smoke and Misfire

2005 CHEVROLET OPTRA
215,000 MILES • 1.6L • 4 CYL • AUTOMATIC
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MOHOMEDRIZNI
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  • 1 POST
Black smoke and black powder .. usually when pressing hard on accelerator and starting time.
it consume more petrol.
recently the car misfiring two or thee time during cold start while it move in 1st gear and after a while car drive perfectly.
3 month before I changed all spark plugs.
please give your solution.
Nov 29, 2015 at 1:27 AM
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HMAC300
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  • 48,601 POSTS
scan for codes, check fuel pressure with a gauge and check for a vacuum leak like a line off or broken
Nov 29, 2015 at 7:53 AM